for me,
i like to get my tone at the bass and leave the amp as close to flat as possible.
so i chose to get a good cabinet - goliath III (good - IMO) and use the leftover money for a workingman's 4004.
so, my 2 cents here is: get the best cab you can afford, and then get as much power as possible with whatever's left.
of course, this may sound horribly wrong for other players and their preferences!

in sum: go to the store, play through everything with your warwick. get the best stuff you can afford!

(ok... you want more specific information, right?)
swr makes good stuff.
there probably aren't too many amps/cabs that won't be "right" for your warwick.
oh yeah, if you're not playing huge venues on a regular basis, check out the new aguilar 2x12.
i've played the 1x12 and i loved it.
i'll bet it'll sound real nice with your warwick.

I think I do not want 2x10" speakers..I heard that the 5th string does not cope right with 2x10" speakers.. somebody told me that 4x10" has a bigger surface and because of that the 5th string will do better..